Ventilator for hen-houses or brooders.



pnrTEn sTATEs GORGE H. LEE, OF OMAHA, NEBRASKA.

VENTILATOR FOR HEBT-HOUSES OR BROODERS.

Specicaton of Letters Patent.

Application filed April 29, 1908.

Patented Dec. 8, 1908.

Serial No. 429,884.

To all whom it may concern:

Beit known that I, GEORGE H. LEE, a citizen of the United States, and a resident of Omaha, in the county of Douglas and State of Nebraska, havel invented a new and 11n- )roved Ventilator for Brooders or Henouses, of which the following is a full, clear, and exact description.

This invention relates to ventilators.

'Vhile the ventilator is intended to be used particularly in connection with brooders and hen houses, it is capable of general use as a ventilating device, that is, where an inner compartment or chamber is to have its air refreshed through communication with the outer air.

The object of the invention is to produce a device of this kind which is very simple in construction and which can be readily set in different positions so as to regulate the amount of ventilation, or fresh air which will be admitted to the interior.

rIhe invention consists in the construction and combination of parts to be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had'to the accompanying drawings forming a part of this specification in which similar characters of reference indicate corresponding parts in all the views, and in which Figure 1 is a perspective showing a corner of a broeder to which the ventilator is applied; Fig. 2 is an outside view or side elevation of the ventilator; and Fig. 3 is a vertical section taken through the wall of the broeder and through the ventilator.

Referring more particularly to the parts, 1 represents the wall of the brooder to which the ventilator 2 is attached. Before placing the ventilator in position, the wall 1 is provided with an opening 3 which is covered with a screen 4 of wire gauze or similar material. The body of the ventilator is formed of a base plate or cheek plate 5, which is of substantially rectangular form, and the vertical side edges of this base plate are bent upwardly so as to form parallel wings or side plates 6 which roject perpendicularly from the wall 1, as s own. These wings or side plates are of substantially triangular form, the acute angle of the triangle being disposed upwardly. At the upper ends of the wings 6, they support a transverse pin or hinge bar 7,

I and on this bar 7, the shutter or door 8 of the ventilator is hung by means of a sleeve 9,

which is formed at the upper edge of the shutter, as shown. At or near the outer edges of the wings 6, the material out of which they are formed is pressed inwardly so as to form a plurality of projections or buttons 10. to engage the side edges of the shutter or door 8 so that they tend to prevent its rotation on the hinge bar 7. They are not suinciently large, however, to prevent the movement of the shutter if sufficient force is applied. ln this connection it should be understood that the side plates 6 are slightly resilient so as to spring outwardly under pressure. It should be also understood that the buttons 10 are of rounded form, so that the edges of the shutter may ride up on them in forcing the wings outwardly in t e manner suggested. These buttons are preferably disposed an equal distance apart, as shown. With this arrangement it will be evident that the shutter may be pulled outwardly so as to adjust its angle or opening. The upper edge of the shutter is mounted quite near the outer face of the base plate 5, so that when the shutter is pushed out of the way, that is, beyond the innermostbutton, it will form a substantial closure for the o ening 3. The shutter operates as a rain slled to exclude the rain and to prevent the rain from beating into the interior'of the brooder. The upper edge of the base plate 5 is bent forwardly to form a cover 1 1 to prevent rain from beating in behind the shutter.

Special attention is called to the simplicity of the construction, enabling the body of the ventilator to be made in one piece and substantially at one operation. It will be noted that no special adjusting devices such as adjusting screws or bolts are involved in the construction. i

Having thus described my invention, I claim as new and desire to secure by Letters Patent,-

1. A ventilator having a body presenting side plates, and a shutter movably mounted between said side plates, said side plates having projections on` the surface thereof disposed a art and tending to limit the movement o said shutter, said side plates being shutter to pass.

2. A ventilator having a body with outwardly projecting side plates with rojections on the surface thereof, and a s utter mounted to swing between said side plates These buttons are sufficiently large Y Y adapted to spring outwardly to permit said and engaging said projections at the edges thereof, said projections having a rounded form offering a yielding resistance to the movement of said shutter.

3. A ventilator having a base plate with outwardly projecting side plates formed at the edges thereof7 said side plates having buttons formed on the inner faces thereof7 and a shutter mounted to swing between said side plates, engaging said buttons at its edges and adjustably held in position thereby,V said side plates being resilient and adapted to spring outwardly by a force applied to said shutter.

4. A ventilator having a base plate with an opening therethrough and adapted to be attached to a wall, said base plate having integral outwardly projecting wings formed at the edges thereof, and a shutter hinged between said Wings near the upperportion thereof and swinging outwardly between said wings, said wings-having rounded buttons projecting inwardly and engaging the edges of said shutter to limit the movement thereof, said shutter affording means for springing said wings outwardly in the opening or closing movement of said shutter.

ln testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE H. LEE.

Witnesses:

R. D. JOHNSTON, HARRY ROWLEY. 

